Ignorance is not bliss?

So there's this girl I liked but she moved to a different school. I managed to get her number and we've been texting since the summer. We enjoy the same games and interests which mad ema like her more. A while back I called saying that I liked talking to her and wanted to go watch a movie (I even suggested the day and everything). She said that she liked talking to me too and would ask her mom for permission for the date. It's been a pretty long time now and she hasn't responded to my calls and texts. None of her friends that I know will help me out. What should I do?